<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
            <!-- 搜索内容与添加用户 -->

            <el-row :gutter="20">
                <el-col :span="6">
                    <el-input
                        placeholder="请输入搜索内容"
                        v-model="queryInfo.query"
                        @keyup.enter.native="getUserList"
                        clearable
                        @clear="getUserList"
                    >
                        <el-button
                            slot="append"
                            icon="el-icon-search"
                            @click="getUserList"
                        ></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button
                        type="primary"
                        @click="addDialogVisible=true"
                    >添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table
                :data="userList"
                border
                stripe
            >
                <el-table-column
                    type="index"
                    label="序号"
                    align="center"
                ></el-table-column>
                <el-table-column
                    prop="username"
                    label="姓名"
                    align="center"
                >
                </el-table-column>
                <el-table-column
                    prop="email"
                    label="邮箱"
                    align="center"
                >
                </el-table-column>
                <el-table-column
                    prop="mobile"
                    label="电话"
                    align="center"
                >
                </el-table-column>
                <el-table-column
                    prop="role_name"
                    label="角色"
                    align="center"
                >
                </el-table-column>
                <el-table-column
                    label="状态"
                    align="center"
                >
                    <!-- 自定义列模板，通过scope.row获取当前行的数据 -->
                    <template slot-scope="scope">
                        <el-switch
                            v-model="scope.row.mg_state"
                            @change="userStateChanged(scope.row)"
                        ></el-switch>
                    </template>
                </el-table-column>
                <el-table-column
                    label="操作"
                    align="center"
                    width="180"
                >
                    <template slot-scope="scope">
                        <el-button
                            type="primary"
                            icon="el-icon-edit"
                            size="mini"
                            @click="showEditDialog(scope.row.id)"
                        ></el-button>
                        <el-button
                            type="danger"
                            icon="el-icon-delete"
                            size="mini"
                            @click="removeUserById(scope.row.id)"
                        ></el-button>
                        <el-button
                            type="warning"
                            icon="el-icon-setting"
                            size="mini"
                            @click="setRole(scope.row)"
                        ></el-button>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5,10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total"
                background
            >
            </el-pagination>

        </el-card>
        <!-- 添加用户的对话框 -->
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%"
            @close="addDialogClosed"
        >
            <el-form
                :model="addForm"
                :rules="addFormRules"
                ref="addFormRef"
                label-width="100px"
            >
                <el-form-item
                    label="用户名"
                    prop="username"
                >
                    <el-input v-model="addForm.username" class="w100"></el-input>
                </el-form-item>
                <el-form-item
                    label="密码"
                    prop="password"
                >
                    <el-input
                        v-model="addForm.password"
                        show-password
                        class="w100"
                    ></el-input>
                </el-form-item>
                <el-form-item
                    label="邮箱"
                    prop="email"
                >
                    <el-input v-model="addForm.email" class="w100"></el-input>
                </el-form-item>
                <el-form-item
                    label="手机号"
                    prop="mobile"
                >
                    <el-input v-model="addForm.mobile" class="w100"></el-input>
                </el-form-item>
            </el-form>
            <span
                slot="footer"
                class="dialog-footer"
            >
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button
                    type="primary"
                    @click="addUser"
                >确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog
            title="修改用户"
            :visible.sync="editDialogVisible"
            width="50%"
            @close="editDialogClosed"
        >
            <el-form
                :model="editForm"
                :rules="editFormRules"
                ref="editFormRef"
                label-width="100px"
            >
                <el-form-item
                    label="用户名"
                    prop="username"
                >
                    <el-input
                        v-model="editForm.username"
                        disabled
                        class="w100"
                    ></el-input>
                </el-form-item>

                <el-form-item
                    label="邮箱"
                    prop="email"
                >
                    <el-input v-model="editForm.email" class="w100"></el-input>
                </el-form-item>
                <el-form-item
                    label="手机号"
                    prop="mobile"
                >
                    <el-input v-model="editForm.mobile" class="w100"></el-input>
                </el-form-item>
            </el-form>
            <span
                slot="footer"
                class="dialog-footer"
            >
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button
                    type="primary"
                    @click="editUser"
                >确 定</el-button>
            </span>
        </el-dialog>
        <!-- 分配角色的对话框 -->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="50%"
            @close="setRoleDialogClosed"
        >
            <div>
                <p>当前的用户：{{userInfo.username}}</p>
                <p>当前的角色：{{userInfo.role_name}}</p>
                <p>分配新角色：
                    <el-select
                        v-model="selectedRoleId"
                        placeholder="请选择"
                    >
                        <el-option
                            v-for="item in rolesList"
                            :key="item.id"
                            :label="item.roleName"
                            :value="item.id"
                        >
                        </el-option>
                    </el-select>

                </p>
            </div>

            <span
                slot="footer"
                class="dialog-footer"
            >
                <el-button @click="setRoleDialogVisible= false">取 消</el-button>
                <el-button
                    type="primary"
                    @click="saveRoleInfo"
                >确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>
<script>
export default {
    data() {
        return {
            // 获取用户列表的参数
            queryInfo: {
                query: '',
                pagenum: 1, //页码
                pagesize: 5 //页大小
            },
            // 用户列表
            userList: [],
            // 总条数
            total: 0,
            // 添加用户对话框的显示和隐藏
            addDialogVisible: false,
            // 添加用户的表单对象
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            // 添加用户的校验规则
            addFormRules: {
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 14, message: '长度在 6 到 14 个字符', trigger: 'blur' }
                ],
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { pattern: /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/, message: '邮箱格式不对', trigger: 'blur' }
                ],
                mobile: [
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    { pattern: /^(0|86|17951)?(13[0-9]|15[012356789]|166|17[3678]|18[0-9]|14[57])[0-9]{8}$/, message: '手机号格式不对', trigger: 'blur' }
                ],
            },
            // 修改用户对话框的显示和隐藏
            editDialogVisible: false,
            // 修改用户的表单对象
            editForm: {},
            // 修改用户的校验规则
            editFormRules: {
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { pattern: /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/, message: '邮箱格式不对', trigger: 'blur' }
                ],
                mobile: [
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    { pattern: /^(0|86|17951)?(13[0-9]|15[012356789]|166|17[3678]|18[0-9]|14[57])[0-9]{8}$/, message: '手机号格式不对', trigger: 'blur' }
                ]
            },
            // 分配角色的对话框的显示和隐藏
            setRoleDialogVisible: false,
            // 需要被分配角色的用户信息
            userInfo: {},
            // 角色列表
            rolesList: [],
            // 已选中的角色的id
            selectedRoleId: ''
        }
    },
    created() {
        // 获取用户列表数据
        this.getUserList();
    },
    methods: {
        // 获取用户列表
        async getUserList() {
            const { data: res } = await this.$http.get('users', {
                params: this.queryInfo,
            });
            if (res.meta.status !== 200) {
                return this.$message.error('获取用户列表失败');
            }
            this.userList = res.data.users;
            this.total = res.data.total;
        },
        // 处理分页大小
        handleSizeChange(pagesize) {
            this.queryInfo.pagesize = pagesize;
            // 刷新用户列表
            this.getUserList();
        },
        handleCurrentChange(pagenum) {
            this.queryInfo.pagenum = pagenum;
            this.getUserList();
        },
        // 修改用户状态
        async userStateChanged(userinfo) {
            const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`, {
                params: this.queryInfo,
            });
            if (res.meta.status !== 200) {
                return this.$message.error('修改用户状态失败');
            }
            this.$message.success('修改用户状态成功');
        },
        // 监听添加用户的对话框
        addDialogClosed() {
            this.$refs.addFormRef.resetFields();
        },
        // 添加用户
        addUser() {
            // 判断表单校验是否成功
            this.$refs.addFormRef.validate(async valid => {
                if (!valid) {
                    return;
                }
                // 发送请求判断是否添加用户成功
                const { data: res } = await this.$http.post('users', this.addForm) //直接返回执行的结果
                if (res.meta.status !== 201) {
                    return this.$message.error('添加用户失败');
                }
                // 关闭对话框
                this.addDialogVisible = false;
                // 刷新用户列表
                this.getUserList();
                this.$message.success('添加用户成功');
            })
        },
        // 监听修改用户的对话框
        editDialogClosed() {
            this.$refs.editFormRef.resetFields();
        },
        async showEditDialog(id) {
            const { data: res } = await this.$http.get(`users/${id}`);
            if (res.meta.status !== 200) {
                return this.$message.error('获取用户信息失败');
            }
            this.editForm = res.data;
            // 打开对话框
            this.editDialogVisible = true
        },
        editUser() {
            // 判断表单校验是否成功
            this.$refs.editFormRef.validate(async valid => {
                if (!valid) {
                    return;
                }
                // 发送请求判断是否修改用户成功
                // put请求和post请求一样，get请求和delete请求一样
                const { data: res } = await this.$http.put(`users/${this.editForm.id}`, {
                    email: this.editForm.email,
                    mobile: this.editForm.mobile
                }) //直接返回执行的结果
                if (res.meta.status !== 200) {
                    return this.$message.error('修改用户失败');
                }
                // 关闭对话框
                this.editDialogVisible = false;
                // 刷新用户列表
                this.getUserList();
                this.$message.success('修改用户成功');
            })
        },
        // 删除用户
        removeUserById(id) {
            this.$confirm('确定要删除该用户吗?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).then(async () => {
                const { data: res } = await this.$http.delete(`users/${id}`);
                if (res.meta.status !== 200) {
                    return this.$message.error('删除用户失败');
                }
                this.getUserList();
                this.$message.success('删除用户成功');
            }).catch(() => {
                this.$message.info('已取消删除');
            });
        },
        // 展示分配角色的对话框
        async setRole(userInfo) {
            this.userInfo = userInfo;
            // 获取所有角色的列表
            const { data: res } = await this.$http.get('roles');
            if (res.meta.status !== 200) {
                return this.$message.error('获取角色列表失败')
            }
            this.rolesList = res.data;
            this.setRoleDialogVisible = true;
        },
        // 点击按钮，分配角色
        async saveRoleInfo() {
            if (!this.selectedRoleId) {
                return this.$message.error('请选择要分配的角色')
            }
            // 发送请求
            const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
                rid: this.selectedRoleId
            });
            if (res.meta.status !== 200) {
                return this.$message.error('分配新角色失败');
            }
            this.$message.success('分配新角色成功');
            this.getUserList();
            this.setRoleDialogVisible = false;
        },
        // 监听分配角色对话框的关闭
        setRoleDialogClosed() {
            this.selectedRoleId = '';
            this.userInfo = [];
        }
    },
};
</script>

<style lang="less" scoped>
</style>